Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current

Young Jae Lee, Kang Hwi Lee, Seung Jin Kang, Kyeung Nam Kim, Seonah Khang, Hye Ran Koo, Sunok Gi, Joo Hyeon Lee, Jeong Whan Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

There are many types of devices which help to manage a personal health conditions such as heartbeat chest belt, pedometer and smart watch. And the most common device has the relationship with heart rate or ECG data. However, users have to attach some electrode or fasten the belt on the bare skin to measure bio-signal information. Therefore, most of people want more convenient and short-ready-time and no-need to attach electrode. In this paper, we proposed the high-resolution measuring system of mechanical activity of cardiac muscle and thereby measure heartbeat. The principle of the proposed measuring method is that the alternating current generate alternating magnetic field around coil. This primary magnetic field induces eddy current which makes magnetic field against primary coil in the nearby objects. To measure high-resolution changes of the induced secondary magnetic fields, we used digital Phase-locked loop(PLL) circuit which provides more high-resolution traces of frequency changes than the previous studies based on digital frequency counter method. As a result of our preliminary experiment, peak-peak intervals of the proposed method showed high correlation with R-R intervals of clinical ECG signals(r=0.9249). Also, from signal traces of the proposed method, we might make a conjecture that the contraction of atrium or ventricle is reflected by changing conductivity of cardiac muscle which is beating ceaselessly.

Original languageEnglish
Title of host publication2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6286-6289
Number of pages4
ISBN (Electronic)9781424479290
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 - Chicago, United States
Duration: 2014 Aug 262014 Aug 30

Other

Other2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
CountryUnited States
CityChicago
Period14/8/2614/8/30

Fingerprint

Magnetic Fields
Eddy currents
Muscle
Myocardium
Magnetic fields
Electrocardiography
Electrodes
Equipment and Supplies
Watches
Phase locked loops
Skin
Thorax
Heart Rate
Health
Networks (circuits)
Experiments

All Science Journal Classification (ASJC) codes

  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering
  • Medicine(all)

Cite this

Lee, Y. J., Lee, K. H., Kang, S. J., Kim, K. N., Khang, S., Koo, H. R., ... Lee, J. W. (2014). Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 (pp. 6286-6289). [6945066] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2014.6945066
Lee, Young Jae ; Lee, Kang Hwi ; Kang, Seung Jin ; Kim, Kyeung Nam ; Khang, Seonah ; Koo, Hye Ran ; Gi, Sunok ; Lee, Joo Hyeon ; Lee, Jeong Whan. / Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current. 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 6286-6289
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Lee, YJ, Lee, KH, Kang, SJ, Kim, KN, Khang, S, Koo, HR, Gi, S, Lee, JH & Lee, JW 2014, Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current. in 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014., 6945066, Institute of Electrical and Electronics Engineers Inc., pp. 6286-6289, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014, Chicago, United States, 14/8/26. https://doi.org/10.1109/EMBC.2014.6945066

Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current. / Lee, Young Jae; Lee, Kang Hwi; Kang, Seung Jin; Kim, Kyeung Nam; Khang, Seonah; Koo, Hye Ran; Gi, Sunok; Lee, Joo Hyeon; Lee, Jeong Whan.

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 6286-6289 6945066.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Lee, Kang Hwi

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Lee YJ, Lee KH, Kang SJ, Kim KN, Khang S, Koo HR et al. Measurement of high-resolution mechanical contraction of cardiac muscle by induced eddy current. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 6286-6289. 6945066 https://doi.org/10.1109/EMBC.2014.6945066